What is Computer Storage?

Storage is a media and methods, which is used to keep information available for later use.

Computer storage is of two types

• Primary Storage
• Secondary Storage

Primary Storage

• It is the main memory of computer.
• It keeps track of current processing
• It is volatile, i.e., turning the power off erases all of the data.
• For main memory, computers use RAM or Random Access Memory.
• These memory chips are the fastest, but most expensive type of storage.

Main Memory = Primary Storage

Secondary Storage

• It is the auxiliary storage of computer.
• It keeps track of what is not currently being processed.
• It is the stuff that is ‘Filed away’, but is ready to be pulled out when needed.
• It is non-volatile, i.e., turning the power off does not erase the data.
• Auxiliary storage is used for input data and programs as well as saving the result of processing.

Auxiliary Storage = Secondary Storage